Friday, February 26, 2010

Subtracting Fractions with like Denominators.

Rule for Adding or Subtracting like Denominators:

*When we say like denominators it means the same bottom numbers.*


Subtracting
Fractions with like denominators basically has the same rule as Adding Fractions with like Denominators.

When adding or subtracting fractions with like denominators you start by adding or subtracting the numerator, and the denominator stays the same.

Examples for adding Fractions with like denominators:

1/4 +1/4=2/4

















Examples for Subtracting Fractions with Like Denominators:

3/4-2/4= 1/4


















Simplifying your answer:

When simplifying your answer you first find the greatest common factor of the numerator and denominator, then divide the numerator and denominator by the greatest common factor. If you can not find a factor for the numerator and denominator then it has already been simplified to it's lowest form.

eg.
7/10-3/10= 4/10= 2/5
1/4+1/4= 2/4= 1/2

Click here for a link to a helpful site on adding and subtracting fractions with common denominators.

Now please enjoy the video.


23 comments:

  1. I apologize for the small print. I have no idea why it keeps changing size. One more thing to improve next time I suppose.

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  2. Great job, Anabelle! I liked how you changed the font colors to make it stand out and the video helped me. The pictures are well done, too.

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  3. Great post Anabelle. I like the way that it is neat and organized. I also like the video and pictures, but next time make your fonts a little bigger. Other than that great job.

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  4. Great job Anabelle!!! Your post was really organized the only thing that I think you could do next time is not make the print so small as you said before. Other than that GREAT JOB!!!!!!!!!!!!!!!!

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  5. Great post Anabelle! I liked the pictures they were very helpful. But next time try to use a larger font because it was hard to read.

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  6. Nice post Anabelle. I like how you changed the colour of the important words and I like your pictures too. It would be nice if you used a bigger font next time.

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  7. Good job Anabelle!I liked how you organized your post by making important words coloured and your pictures are very easy to understand! But it could be better when you make font a little bigger!

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  8. Great lob annabelle everything was organized and the pictures were great but next time try to make the letters a little bigger but overall great job.

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  9. Great post, Anabelle! your post was neat and organized. I like the pictures that you posted especially the video. Next time, make your font a little bigger. But other than that, Good Job!

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  10. great post anabelle,i like your pictures and the video especially the font. but next time make the letters bigger

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  11. Great post, Anabelle! I love how your pictures and words were organized. One thing you can improve on is to make your font bigger. Overall, it was a terrific post!

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  12. Nice post. I like the video and picture. But i think u should make the font bigger.

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  13. Great post Anabelle, i like how you organized the post, but i think the font should be a little bigger.

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  14. great job Anabelle. But you should make your font bigger.

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  15. Great Job Anabelle! You did an awesome job! but next time make the font bigger.

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  16. Nice post Anabelle! But you could have made the font bigger.

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  17. Great post Anabelle! I really liked the video.Next time you should make the font bigger other then that your post was great!

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  18. Good Job Anabelle! Your scribe looks great. It's really organized, neat and easy to understand. Your video is fantastic. But next time you should make it bigger.

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  19. Good job Anabelle. The font was a little small, But everything else was fine.

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  20. Good post Anabelle. But i think you shouldève made the font bigger.

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  21. Nice job anabelleBut the font was a bit small...

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  22. Nice post Anabelle, You could have made the font a bit bigger

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  23. Great poswt but the text was to small and the video didnt work.

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